p-Block elementsHardBloom L3

Question

An inorganic compound (A) made of two most occuring elements into the earth crust, having a polymeric tetra-headral network structure. With carbon, compound (A) produces a poisonous gas (B) which is the most stable diatomic molecule. Compounds (A) and (B) will be

Options

A.SiO2, CO2
B.SiO2, CO
C.SiC,CO
D.SiO2’ N2

Solution

Sol. SiO2 ​ + 2C → Si + 2CO

Compound A is silica (SiO2​) made of Si and O2​, two most occuring elements into the earth crust, having a polymeric tetraheadral network structure. Compound B is CO, a poisonous gas which is the most stable diatomic molecule

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